Sökning: "daniel andersson kth"

Visar resultat 1 - 5 av 9 avhandlingar innehållade orden daniel andersson kth.

  1. 1. Contributions to the Stochastic Maximum Principle

    Författare :Daniel Andersson; Boualem Djehiche; Fred Espen Benth; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Mathematical statistics; Matematisk statistik;

    Sammanfattning : This thesis consists of four papers treating the maximum principle for stochastic control problems. In the first paper we study the optimal control of a class of stochastic differential equations (SDEs) of mean-field type, where the coefficients are allowed to depend on the law of the process. LÄS MER

  3. 2. Necessary Optimality Conditions for Two Stochastic Control Problems

    Författare :Daniel Andersson; Boualem Djehiche; Tomas Björk; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Mathematical statistics; Matematisk statistik;

    Sammanfattning : This thesis consists of two papers concerning necessary conditions in stochastic control problems. In the first paper, we study the problem of controlling a linear stochastic differential equation (SDE) where the coefficients are random and not necessarily bounded. We consider relaxed control processes, i.e. LÄS MER

  4. 3. Material Characterization of Powder Materials using Inverse Modeling

    Författare :Daniel C. Andersson; Per-Lennart Larsson; Didier Bouvard; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : .... LÄS MER

  5. 4. Human-structure interaction effect on the dynamic response of footbridges : An analytical and experimental study

    Författare :Daniel Colmenares; Raid Karoumi; Andreas Andersson; Federica Tubino; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; footbridges; dynamics; human induced loads; human structure interaction.; Bro- och stålbyggnad; Structural Engineering and Bridges;

    Sammanfattning : Lightweight, slender and lightly damped footbridges are often susceptible to HumanInduced Loads (HILs) when pedestrian step frequencies coincide with the naturalfrequencies of the structure. For vertical vibrations, this can compromise the serviceabilitylimit state of the system. LÄS MER

  7. 5. On the dynamics of footbridges : A theoretical approach and a comparison between running and walking loads

    Författare :Daniel Colmenares; Raid Karoumi; Andreas Andersson; Mahir Ülker Kaustell; Pedro Museros Romero; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; footbridges; dynamics; human induced loads; human structure interaction; harmonic load; continuous beam; gångbroar; dynamik; fotgängarlast; samverkan mellan fotgängare och bro; harmonisk last; kontinuerlig balk.; Structural Engineering and Bridges; Bro- och stålbyggnad;

    Sammanfattning : The dynamic behaviour of lightweight footbridges is often susceptible to HumanInduced Loads (HILs). Generally HILs are taken into account as moving harmonicfunctions in which the loading frequency represents the step frequency of the pedestrians. LÄS MER